intermittent radiator fan on and off
#1
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As the title states my fan will just turn on full then turn off. It doesn't have to be a warm day or A/C on. I watch the water temp with the JB4 mobil and the car is not hot.
My suspicion is water pump but I would love someone to tell me that it is not![Big Grin](https://5series.net/forums/images/smilies/imported/biggrin.gif)
I guess a waterpump on a xi is a real pain.
Thanks!
My suspicion is water pump but I would love someone to tell me that it is not
![Big Grin](https://5series.net/forums/images/smilies/imported/biggrin.gif)
I guess a waterpump on a xi is a real pain.
Thanks!
#4
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My Ride: 05 530i M54
Model Year: 05 530i
Engine: 3.0 M54
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Do you have INPA or ISTA? That will tell you what your issue is by the messages it gives. My issue was a bit different. Usually when I hear a fan that's running high intermittently during idle or operation it's usually the pump or cooling sensor.
If you don't have one of those 2 programs and you have a laptop it's easy to get and about $20 for the cable
If you don't have one of those 2 programs and you have a laptop it's easy to get and about $20 for the cable
#6
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Do you have INPA or ISTA? That will tell you what your issue is by the messages it gives. My issue was a bit different. Usually when I hear a fan that's running high intermittently during idle or operation it's usually the pump or cooling sensor.
If you don't have one of those 2 programs and you have a laptop it's easy to get and about $20 for the cable
If you don't have one of those 2 programs and you have a laptop it's easy to get and about $20 for the cable
#7
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My Ride: 05 530i M54
Model Year: 05 530i
Engine: 3.0 M54
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Originally Posted by donpb
Uh, I remember you unknowingly had that knock off fan, that was turning on full and then off when you first started the car. You said you replaced the fan. I ran out and checked my fan, for you.
#8
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Any suggestions on what I should do? I ran a fault test on the water pump with the schwaben tool with no issues. I usually have the JB4 screen on watching water temp. I am thinking it should be fine as long as I do not see the temp climb.
I am at 115k miles with no know history of the water pump. I will have to do it at some point, just trying to avoid it right now.
I am at 115k miles with no know history of the water pump. I will have to do it at some point, just trying to avoid it right now.